Long-term Debt - PAC (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Par value	$ 51,702
Total long-term debt	51,635	$ 49,762
Current portion of long-term debt	3,201	1,265
Subsidiary debt
Debt Instrument [Line Items]
Par value	37,501
Subsidiary debt	37,539	36,659
PAC
Debt Instrument [Line Items]
Total long-term debt	9,666	8,730
Current portion of long-term debt	449	155
Long-term debt	9,217	8,575
Maximum amount of additional long-term debt approved by regulators	900
Eligible property subject to lien of mortgages	33,000
PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	9,742
Subsidiary debt	$ 9,666	$ 8,730
2.95% to 8.23%, due through 2026 \| PAC
Debt Instrument [Line Items]
Average interest rate	4.07%	4.41%
2.95% to 8.23%, due through 2026 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 1,224
Subsidiary debt	$ 1,223	$ 1,377
2.70% to 7.70%, due 2029 to 2031 \| PAC
Debt Instrument [Line Items]
Average interest rate	4.35%	4.35%
2.70% to 7.70%, due 2029 to 2031 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 1,100
Subsidiary debt	$ 1,095	$ 1,094
5.25% to 6.25%, due 2034 to 2037 \| PAC
Debt Instrument [Line Items]
Average interest rate	5.90%	5.90%
5.25% to 6.25%, due 2034 to 2037 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 2,050
Subsidiary debt	$ 2,042	$ 2,042
4.10% to 6.35%, due 2038 to 2042 \| PAC
Debt Instrument [Line Items]
Average interest rate	5.63%	5.63%
4.10% to 6.35%, due 2038 to 2042 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 1,250
Subsidiary debt	$ 1,239	$ 1,238
2.90% to 5.35%, due 2049 to 2053 \| PAC
Debt Instrument [Line Items]
Average interest rate	4.03%	3.52%
2.90% to 5.35%, due 2049 to 2053 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 3,900
Subsidiary debt	$ 3,849	$ 2,761
Due 2025 \| PAC
Debt Instrument [Line Items]
Average interest rate	4.10%	0.12%
Due 2025 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 25
Subsidiary debt	$ 25	$ 25
Due 2024 to 2025 \| PAC
Debt Instrument [Line Items]
Average interest rate	3.81%	0.13%
Due 2024 to 2025 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Par value	$ 193
Subsidiary debt	193	$ 193
Long-term Debt \| PAC
Debt Instrument [Line Items]
Par value	9,742
Total long-term debt	$ 9,666	$ 8,730
First Mortgage Bonds, 5.35%, Due 2053 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	5.35%
Par value	$ 1,100
Minimum \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Variable rate	3.75%	0.12%
Minimum \| 2.95% to 8.23%, due through 2026 \| PAC
Debt Instrument [Line Items]
Stated rate	2.95%
Minimum \| 2.95% to 8.23%, due through 2026 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	2.95%
Minimum \| 2.70% to 7.70%, due 2029 to 2031 \| PAC
Debt Instrument [Line Items]
Stated rate	2.70%
Minimum \| 2.70% to 7.70%, due 2029 to 2031 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	2.70%
Minimum \| 5.25% to 6.25%, due 2034 to 2037 \| PAC
Debt Instrument [Line Items]
Stated rate	5.25%
Minimum \| 5.25% to 6.25%, due 2034 to 2037 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	5.25%
Minimum \| 4.10% to 6.35%, due 2038 to 2042 \| PAC
Debt Instrument [Line Items]
Stated rate	4.10%
Minimum \| 4.10% to 6.35%, due 2038 to 2042 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	4.10%
Minimum \| 2.90% to 5.35%, due 2049 to 2053 \| PAC
Debt Instrument [Line Items]
Stated rate	2.90%
Minimum \| 2.90% to 5.35%, due 2049 to 2053 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	2.90%
Maximum \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Variable rate	4.10%	0.14%
Maximum \| 2.95% to 8.23%, due through 2026 \| PAC
Debt Instrument [Line Items]
Stated rate	8.23%
Maximum \| 2.95% to 8.23%, due through 2026 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	8.23%
Maximum \| 2.70% to 7.70%, due 2029 to 2031 \| PAC
Debt Instrument [Line Items]
Stated rate	7.70%
Maximum \| 2.70% to 7.70%, due 2029 to 2031 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	7.70%
Maximum \| 5.25% to 6.25%, due 2034 to 2037 \| PAC
Debt Instrument [Line Items]
Stated rate	6.25%
Maximum \| 5.25% to 6.25%, due 2034 to 2037 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	6.25%
Maximum \| 4.10% to 6.35%, due 2038 to 2042 \| PAC
Debt Instrument [Line Items]
Stated rate	6.35%
Maximum \| 4.10% to 6.35%, due 2038 to 2042 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	6.35%
Maximum \| 2.90% to 5.35%, due 2049 to 2053 \| PAC
Debt Instrument [Line Items]
Stated rate	5.35%
Maximum \| 2.90% to 5.35%, due 2049 to 2053 \| PAC \| Subsidiary debt
Debt Instrument [Line Items]
Stated rate	5.35%

Represents the amount of eligible property that was subject to lien of mortgage (based on original cost).

No definition available.

Name:	bhe_EligiblePropertySubjectToLienOfMortgages
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

The maximum amount of additional long-term debt that can be issued under current regulatory authority from the relevant regulatory agencies.

+ References

No definition available.

+ Details

Name:	bhe_MaximumAmountOfAdditionalLongTermDebtApprovedByRegulators
Namespace Prefix:	bhe_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=124435984&loc=d3e28551-108399

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI https://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 50
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124429444&loc=SL124452920-239629

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI https://asc.fasb.org/extlink&oid=123466204&loc=SL6031897-161870

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69C
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495737-112612

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 55
-Paragraph 69B
-URI https://asc.fasb.org/extlink&oid=123466577&loc=SL123495735-112612

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1D
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=123466505&loc=SL123495340-112611

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

+ Details

Name:	us-gaap_LongTermDebtCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt classified as noncurrent. Excludes lease obligation.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebtNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

+ Details

Name:	us-gaap_LongTermDebtPercentageBearingVariableInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average interest rate of long-term debt outstanding calculated at point in time.

+ References

No definition available.

+ Details

Name:	us-gaap_LongtermDebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of long-term debt classified as other.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI https://asc.fasb.org/extlink&oid=126734703&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878

+ Details

Name:	us-gaap_OtherLongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=bhe_SubsidiaryDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	dei_LegalEntityAxis=bhe_PacificorpMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds295To823DueThrough2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds270To770Due2029To2031Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds525To625Due2034To2037Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds410To635Due2038To2042Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds290To535Due2049To2053Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_Taxexemptbondobligationsvariablerateseriesdue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_Variableratetaxexemptobligationseriesdue2024to2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=us-gaap_LongTermDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bhe_FirstMortgageBonds535Due2053Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: